Phileas Fogg had accomplished the journey round the world in eighty days!
Phileas Fogg had won his wager of twenty thousand pounds!
How was it that a man so exact and fastidious could have made this error of a day? How came he to think that he had arrived in London on Saturday, the twenty-first day of December, when it was really Friday, the twentieth, the seventy-ninth day only from his departure?
The cause of the error is very simple.